“Sake-Bomb” is a road-tripping culture-clash comedy with something to say, even though it’s not always good at saying it.

First-time director Junya Sakino casts Eugene Kim as Sebastian, a self-loathing Japanese American man who spends his days video blogging rants about Asian stereotypes. When his cousin Naoto (Gaku Hamada) visits the States for the first time, Sebastian reluctantly takes him in search of the English teacher Naoto shared a short-lived love affair with.

The pair encounters racists aplenty. Ironically, given Sebastian’s pet peeve, they all end up being stereotypes themselves. There are sensitive gays and redneck cops, and Sebastian is loudly unpleasant to each one.

Unfortunately, “Sake-Bomb” is its own tedious cliché: a polemic that becomes everything it’s supposed to hate.